1-(4-Hydrazino-benzenesulfonyl)-piperidine-3-carboxylic acid hydrazide

(3-Amino-4-oxo-3,4-dihydro-quinazolin-2-ylsulfanyl)-acetic acid ethyl ester

2-(4-Chloro-pyrazol-1-yl)-butyric acid hydrazide

1-(3,5-Dimethyl-4-nitro-pyrazol-1-ylmethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

2-(3-Trifluoromethyl-pyrazol-1-yl)-propionic acidhydrazide

1-(4-Isopropyl-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

1-Phenoxymethyl-1 H -pyrazole-3-carboxylic acid hydrazide

1-(3-Chloro-4-fluoro-phenoxymethyl)-1 H -pyrazole-3-carboxylic acid hydrazide

(2- p -Tolyl-5-trifluoromethyl-2 H -pyrazol-3-yloxy)-acetic acid hydrazide

2-(4-Nitro-pyrazol-1-yl)-propionic acid hydrazide

4-Nitro-pyrazol-1-ylamine